John Tierney is a journalist and bestselling author whose books have been translated into more than 20 languages. He is a contributing editor to City Journal, a former columnist at the New York Times, and has written for dozens of magazines and newspapers. During more than two decades at the New York Times, he was a science columnist, an Op-Ed columnist and a staff writer for the Times Magazine. Together with the social psychologist Roy Baumeister, he wrote a New York Times best-seller titled, Willpower: Rediscovering the Greatest Human Strength. His latest book, also co-authored with Roy Baumeister, is The Power of Bad: How the Negativity Effect Rules Us and How We Can Rule It.